Echo Divers Koh Tao is a small SSI dive centre in Mae Haad, working closely with the neighbouring Echo Hostel to combine diving, accommodation and island life. The focus is on small groups, personalised, unrushed teaching and well-maintained equipment. Courses range from the no-certification SSI Basic Diver experience through Open Water and Advanced Diver, plus specialties such as Deep Diving, Wreck, Nitrox, Buoyancy, Navigation and Night Diving, alongside fun dive packages.